Federal authorities say 24 people have been arrested in connection with a drug-trafficking ring that’s tied to a Mexican cartel authorities believe distributed about 2 kilograms of heroin a week in northeastern Oklahoma.

The man killed in a knife attack along the Appalachian Trail in Wythe County over the weekend was a 43-year-old man from Oklahoma, according to a joint statement from FBI and a federal prosecutor's office.

The maker of OxyContin and the family that owns the company have reached a $270 million settlement with the state of Oklahoma over the prescription painkiller’s role in the nation’s deadly opioid crisis, a person familiar with the agreement said Tuesday.